内容正文:
初二上册北师大版
【句型辨析精讲】
f引导条件状语从句
初二上册
【句型辨析精讲】f引导条件状语从句(主
将从现)
初中英语·北师大版初二上册
句型辨析精讲
辨析一f引导条件状语从句(主将从现)vs when引导时间状语从句(主将从现)
维度
if引导条件状语从句(主将从whn引导时间状语从句(主
现)
将从现)
核心含义
表示“如果…就…”,强表示“当…时候就”,强
调条件关系
调时间关系
引导词功能
连接条件与结果
连接时间点/时间段与结果
从句时态
般现在时
般现在时
主句时态
般将来时
般将来时
例句对比
If it rains tomorrow,we will stay at home.(如果明天下雨,我们就待在家里)》
When he comes back,I will tell him the news.(当他回来时,我会告诉他这个消息)
真题链接(北师大版初二上册期中真题)
you study hard,youpass the exam.
A.If;will
B.When;do
C.If:did
答案:A解析:句意“如果你努力学习,你就会通过考试”,表条件关系,用f引导,主句用
般将来时,选A。
初二上册北师大版
【句型辨析精讲】
f引导条件状语从句
辨析二f引导条件状语从句:(主将从现)vs unless引导条件状语从句(主将从现)
维度
f引导条件状语从句(主将从
unless引导条件状语从句(主
现)
将从现)
核心含义如果(肯定条件)
除非(=if not,否定条件)
转换关系if.not可转换为unless
unless可转换为if.not
例句对比
If you don't hurry up,.you will be late.(如果你不快点,你会迟到)
Unless you hurry up,you will be late.(除非你快点,否则你会迟到)
真题链接(北师大版初二上册同步练习)
You will fail the test you study for it.
A.if
B.unless
C.when
答案:B解析:句意“除非你为考试学习,否则你会不及格”,表否定条件,用unless,选B。
辨析三f引导条件状语从句(主将从现)s『引导宾语从句
维度
f引导条件状语从句(主将从f引导宾语从句
现)
句子成分状语(表条件)
宾语(表“是否”)
主句时态
一般将来时
根据语境用不同时态(一般
现在时、一般过去时等)
从句时态一般现在时
根据主句时态变化(主现从
任意,主过从过去)
例句对比
If it snows,we will make a snowman.(条件状语从句,主将从现)
Idom't know if he will come tomorrow.(宾语从句,表“是否”,主句一般现在时,从句一般将来时)
真题链接(北师大版初二上册月考真题)
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初二上册北师大版
【句型辨析精讲】f引导条件状语从句
She asked me I could help her with her English.
A.if
B.when
C.what
答案:A解析:句意“她问我是否能帮她学英语”,此处f引导宾语从句表“是否”,选A。
辨析四f引导条件状语从句(主将从现)vs祈使句+and/or+简单句
维度
if引导条件状语从句(主将从祈使句+and/or+简单句
现)
结构形式f+一般现在时,主句一般将祈使句(动词原形开头)+
来时
and/or+一般将来时简单句
逻辑关系条件与结果
条件与结果(祈使句表条件)
例句对比
If you work hard,you will succeed..(如果努力,就会成功)
Work hard,and you will succeed.(努力工作,你就会成功)
真题链接(北师大版初二上册期末真题)
up early,or you miss the bus.
A.Get;will
B.Getting;will
C.To get;do
答案:A解析:祈使句+or+简单句结构,祈使句用动词原形开头,o后接一般将来时,选A。
综合训练
1.If you to the party,you will have a great time.
A.go
B.went
C.will go
2.I don't know he will arrive on time tomorrow.
3
初二上册北师大版
【句型辨析精讲】f引导条件状语从句
A.if
B.when
C.unless
3.Youcatch the early bus unless you get up at 6:00.
A.can
B.can't
C.could
4.it rains this weekend,we will stay at home and watch movies.
A.When
B.If
C.Unless
从if(条件)/if(是否)/when/unless中选择合适的词完成句子
1.she comes back,please tell her to call me.
2.They will not go hiking the weather is fine tomorrow.
3.He asked me I had finished my homework.
4.you don't practice speaking English,you will not improve it.
1.If you don't study hard,you will fail the exam.(用unless改写)
2.I think he will come to the meeting.(用if引导宾语从句改写)
3.When she gets home,.she will cook dinner..(用if引导条件状语从句改写,保持句意相近)
阅读短文,选择合适的词填空,使短文通顺连贯
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初二上册北师大版
【句型辨析精讲】f引导条件状语从句
Dear Tom,
I'm writing to tell you about my weekend plan.1.the weather is good on Saturday,I will go cycling
with my friends.2.we start early,we can reach the lake before noon.I'm not sure 3.Mike
will join us because he has a piano lesson.4.he can't come,Peter will go with us instead.Please
let me know 5.you are free to join us too!
Best wishes,
Jack
I.单项选择
1.A2.A3.B4.B
Ⅱ.选短语填空/完成句子
1.When 2.unless 3.if 4.If
I.句型转换
1.Unless you study hard,you will fail the exam.
2.I think if he will come to the meeting.
3.If she gets home,she will cook dinner.
V.语篇填空
1.If 2.If 3.if 4.If 5.if
5